SIZE

COMMON DRIVE
1. PHILLIPS (PH)
2. SLOTTED/ SLOT
3. PHILLIPS/ SLOTTED COMBO.
4. HEX EXTERNAL
5. HEX SOCKET
6. QUADREX
7. TORX (TX)
MORE DETAILS REGARDING 「DRIVE」, PLEASE CHECK ON https://en.wikipedia.org/wiki/List_of_screw_drives